MEMBRANE SUPPLIER
Memtec America Corporation
5 West Aylesbury Road
Timonium MD 21093
Web Page: http://www.usfmemcor.com
Contact Person: Patricia L. Scott
Tel: 410-308-2955; 1-800-MEMCOR4
Fax: 410-561-3017
SUMMARY DATA
Startup Year1996
ProcessMF/RO
Capacity (MGD)20MGD; expandable to 62MGD
Recovery Rate (%)70
Pretreatmentchemical clarification with lime, recarbonation and microfiltration 
Post-Treatmentchlorination 
Feed Water Compositionsecondary effluent from the City of Los Angeles Hyperion Wastewater Treatment Plant 
Product Water CompositionTitle 22 GW quality; GW injection, industrial uses, and landscape irrigation
Concentrate Disposalocean discharge 
PROJECT SUMMARY*
per http://www.lc.usbr.gov/~scao/westbasi.html
The West Basin Municipal Water District is constructing the West Basin Water Reclamation Project in order to annually put to use approximately 70,000 acre feet of secondary effluent from the Hyperion Wastewater Treatment Plant, which is owned by the City of Los Angeles. The reclaimed water will be used for landscape irrigation and industrial process water. A portion of the reclaimed water will be treated to more advanced levels to allow its direct injection into seawater intrusion barriers.
By substituting reclaimed water for potable water, the demand for expensive imported water is decreased, resulting in lower diversions from environmentally sensitive regions such as Mono Lake, the Bay/Delta, and the Colorado River. The reclaimed water users are also provided with a source of water that is very dependable, even during times of drought. Environmental benefits are realized through the reduction of wastewater being discharged into Santa Monica Bay.
The Project consists of a secondary effluent pump station at Hyperion and a water reclamation treatment plant located in the City of El Segundo, connected by a 60-inch force main. A system of pumps and pipelines to distribute the reclaimed water to users is also included. The Project is being constructed in phases so as to bring the reclamation plant on-line as quickly as possible, and adequately serve identified reclaimed water users. The area that will be serviced by the reclaimed water distribution mains is highly developed and includes commercial, industrial, institutional and residential land uses.
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